After chaps, just wondering if anyone can offer some advice re the above, car is a mk3 1.8 60k miles

I have a droning sound which seems to be coming from the rear of the car which gets louder with speed

the sound appears to be purely speed related as it does it with the car either in or out of gear

it doesn't appear to change at all when turning left or right so don't know whether that rules out wheel bearings or not, I jacked it up the other week and there doesn't appear to be any play in the wheels at all

car hasn't had new tyres or anything recently and the tyres have loads of tread left on them and it hasn't been dunted off a kerb or anything like that

the diff oil was changed about 6k ago, checked that as well and its full and clear

anyone any ideas what it could be or any further checks I could do before letting a garage have a look at it, its not horrendous but mildly irritating as the car was quiet before

lastly I have left the wife out the car so no droning is coming from there lol

Cheers Eddie, will have a look at the discs and the backing plates although it sounds more like a drone than a rubbing noise, hoping its maybe a wheel bearing as I don't fancy having to replace the diff

My 2006 1.8 MX5 has done 60k and I have noticed a drone noise that is more noticable with the roof up cant hear it with the roof down my first instinct was the rear o/s wheel bearing as I have had wheel bearings go in the past(not this car) SORNED just now so will will be doing the rear brakes soon. and I will have a look then , but will probably get my local indie to do the work as I dont have all the tools , My daily driver is a peuguot 307 I have had 3 wheel bearings go 1 at 50,000 , 1 at 70,000 and 1 at 120,000 with the remaining 1 still original so just goes to show they can fail anytime

well brakes seem all fine, no binding and dust shields not rubbing at all, car has its MOT in about a months time so will see if anything comes up on that, hopefully if there is a problem it will be identified then

Just a quick update on this, decided to jack up the rear of the car and had a mate sit in it and accelerate to about 50 at which point it quickly became apparent that it was the right rear wheel bearing, so all replaced and running nice and quiet again and as a bonus, through the MOT without any advisories